Widowed surgeon Tom has struggled to raise his two daughters alone following his wife's death a year ago. Things seem to be on the right track for the family, who live in a gated community, because they have close friends nearby and Tom is in the early stages of a new relationship. But the situation takes a turn for the worse when Jenny, Tom's oldest daughter, goes missing along with her boyfriend. Tom enlists girlfriend Sophie, a police detective, to help locate the teens, but her new partner is working her own agenda. As the investigation intensifies, Tom unearths dark secrets about the people closest to him in his affluent neighborhood. The drama series was created by mystery novelist Harlan Coben.